<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像区域 -->
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="" />
      </div>
      <!-- 登录表单区域 -->
      <el-form ref="loginFormRef" :model='loginForm' :rules="loginFormRules" label-width="0px" class="login_form">
        <!-- 用户名 -->
        <el-form-item  prop='username'>
          <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop='password'>
          <el-input v-model="loginForm.password" prefix-icon="iconfont icon-3702mima" show-password></el-input>
        </el-form-item>
        <!-- 按钮区域 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="loginFormRef">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 登录表单的数据绑定对象
      loginForm:{
        username:'admin',
        password:'123456'
      },
      // 表单的验证规则对象
      loginFormRules:{
        // 验证用户名是否合法
        username:[
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        // 验证密码是否合法
        password:[
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    // 点击重置按钮，重置登录表单
    loginFormRef(){
      // console.log(this);
      this.$refs.loginFormRef.resetFields()
    },
    login(){
      this.$refs.loginFormRef.validate(async valid=>{
        if(!valid) return;
        const {data:res}=await this.$http.post('login',this.loginForm);
        if(res.meta.status!==200) return this.$message.error('登录失败')
        this.$message.success('登录成功')
        console.log(res);
        window.sessionStorage.setItem('token',res.data.token);
        this.$router.push('/home')
      })
    }
  },
};
</script>

<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
}
.login_box {
  position: absolute;
  top: 50%;
  left: 50%;
  height: 300px;
  width: 450px;
  background-color: #fff;
  border-radius: 3px;
  transform: translate(-50%, -50%);
  .avatar_box {
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    width: 130px;
    height: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
  .login_form {
    position: absolute;
    width: 100%;
    bottom: 0;
    padding: 0 10px;
    .btns {
      display: flex;
      justify-content: flex-end;
    }
  }
}
</style>